hi -- we were trying to zap you -- but it looks like you haven’t set up a NIP-05 or ⚡ lightning address yet — grab one free at

Rizful: Lightning Services

Free Lightning vaults, and instant, disposable Lightning Nodes.

.. then pls reply here and we will try zapping you...

Payjoin is a protocol, nobody outright owns it just like Bitcoin. But PayjoinFoundation.org is the one developing it.